Question

Vertebrochondral ribs in man are

• A. $8^{th},9^{th},{10}^{th}rib$
• B. $7^{th},8^{th},9^{th}rib$
• C. $9^{th},{10}^{th},{11}^{th}rib$
• D. $6^{th},7^{th},8^{th}rib$

Answer 1

The correct option is A $8^{th},9^{th},{10}^{th}rib$

• There are 33 ribs. Each rib is a thin flat bone connected dorsally to the vertebral column and ventrally to the sternum. It has two articulation surfaces on its dorsal end and is hence, called bicephalic.
• First seven pairs of ribs are called true ribs. Dorsally, they are attached to the thoracic vertebrae and ventrally connected to the sternum with the help of hyaline cartilage.
• Vertebrochondral ribs refers to the eighth-to-twelfth pairs of ribs. The eighth-to-tenth pairs of ribs connect to the sternum indirectly via the costal cartilages of the ribs above them.